It usually takes me more than three weeks to prepare a good impromptu speech.

If you listen to your fears, you will die never knowing what a great person you might have been.

Effort only fully releases its reward after a person refuses to quit.

Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.

If you can build a business up big enough, it's respectable.

If there is anything that a man can do well, I say let him do it. Give him a chance.

There are no secrets to success. It is the result of preparation, hard work, and learning from failure.

An economist's guess is liable to be as good as anybody else's.

Hell, there are no rules here - we're trying to accomplish something.

Whenever you find yourself on the side of the majority, it is time to pause and reflect.